reading the signal…
Signals / Object / Street-level imagery
in Minneapolis, MN·counted·672 all time
A roadside or paved-surface opening that collects and directs rainwater into an underground drainage system.
Counted, not streamed: Street Drain has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.